From 9284a649366936ea82524c27377f242c828f1f69 Mon Sep 17 00:00:00 2001
From: Eric Niebler <eric@boostpro.com>
Date: Sun, 17 Feb 2013 23:56:10 +0000
Subject: [PATCH] disable annoying msvc warning, refs #7663

[SVN r82960]
---
 include/boost/utility/result_of.hpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/include/boost/utility/result_of.hpp b/include/boost/utility/result_of.hpp
index 4a20254..97e9618 100644
--- a/include/boost/utility/result_of.hpp
+++ b/include/boost/utility/result_of.hpp
@@ -68,6 +68,13 @@ template<typename F, typename FArgs, bool HasResultType> struct tr1_result_of_im
 
 #ifdef BOOST_NO_SFINAE_EXPR
 
+// There doesn't seem to be any other way to turn this off such that the presence of
+// the user-defined operator,() below doesn't cause spurious warning all over the place,
+// so unconditionally turn it off.
+#if BOOST_MSVC
+#  pragma warning(disable: 4913) // user defined binary operator ',' exists but no overload could convert all operands, default built-in binary operator ',' used
+#endif
+
 struct result_of_private_type {};
 
 struct result_of_weird_type {